Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
thien van » thi van
su triet » su viet, su tien, ve triet
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
thuc va » thuc vat, thuc dan, thuc day
va lanh » va lang, va danh, va hanh
van am » van nam, van lam, van dam
dao su » dao suu, dan su, cao su

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (thuat sach)) ky nang xa hoi. thien van am thuc va lanh dao su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thuat sach)) ky nang xa hoi. thien van am thuc va lanh dao su triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thuat sach)) ky nang xa hoi. thien van am thuc va lanh dao su triet*.